Automobile parking anchor



Dec'. 29, 1931. s. J. c'ULLEN l I I AUTOMOBILE PARKING ANCHOR I FiledDec. 26, 1929 2 Sheets-Sheet Al Jzzpv JCULL .eM-f IN VENTOR l ATTORNEYDec. 29, 1931. J. CULLEN AUTOMQBILE P ARKING ANCHOR Filed Dec. ze, 19292 Sheets-Sheet 2 IIIIIIHM INVENTOR ATTORNEY Patented Dec. 29, 1931 Y f v1,839,142

UNITED STATES PATENT oli-Fica V.SV .IYIEEEIHILN JAMES GULLEN, F IBRONX,NEW YORK AUTOMOBILE PARKING ANCHOR Application filed December 26, 1929.Serial No. 416,622.

This invention relates to'automobile locks ing the position of theabrasive member with and has for its principal object to providerelation to the wheel. Y a lock operable from the drivers seat forFigure 7 isa diagram of connections "ofthe securely locking the rearwheels as a. protecmotor and switchfor controlling the motion 5 tionagainst theft. of the lock. 55

i Another object is to provide a lock which Fi ure 8 is a diagramillustrating the methmay be used as a brake in eXtreme emer- Vod ointerrupting the ignitioncircuit when gencies. j the locking mechanislnis renderedr effective.

A-'further object is to provide means for The numeral 11, Figures 1 and2, reprel 10 locking the wheels of an automobile equipped sents thechassis of an automobile of well 60 with Vsolidwheels as aprotectionagainst theft known `construction while the numerals 12 andasaprotection against incomplete appliand 13 representV the dash board andrear cation 0f the brakes Y wheels respective of said vehicle.' Thelock-L vYet another object is toprovide a locking ing mechanism consistsof a pair of slidable 5 device including'an abrasive element to enbarsor bolts 14 and 15 carried by arms 16 65 gage the web of a disk wheeltofcut through and 17 which in turn are supported by the the webV andseparate the rim portion from rear axle housing ,18. vEach'of the bolts14 the yhub when the car is towed while locked, and is provided with arack portion 19 perso that the vehicle axle will drop to the groundmanently meshing with a pinion 20 carried 20 and thus prevent furthertowing of theV car by horizontal shaft 22 journaled in a hous'- 7o j onits Wheels. ing 21 mounted upon the rear aXlefadj-acent Other objectsand advantages of the inventhe diierential housing. tion will behereinafter Aspecifically pointed The shaft 22' is connected to ahorizontal out, or will become apparent, as the specifioashaft 23journaled in suitable brackets 24 tion proceeds. carried by the framethrough the medium of 7'5l With-the aboveindicated objects in view, ashort shaft 25. The shaft 23 is joined to the invention resides incertain novel con-k the shafts 22, 25thr`ough connections comstructionsand combinations and arrangement prising universal joints 26, andextends to a Y of parts, clearly described in the following pointy justbeneath thev dashboard 12. .A y i specification and fully illustrated inthe acsprocket wheel 27'fast on shaft 23 is connectso companyingdrawings, which latter show emed by means of a sprocket chain to asprocket bodiments of the invention as at present prepinion carried by amotor 28 mounted upon ferred. a support 29 back of the dash board,lunder- In said drawings: 1 neath the hood of the engine. i Figure 1 is atop plan View of the chassis The motor 28 is connected when desired to85' of an automobile. embodying the present ina storagebattery 30 vforthe purpose of lockvention. v y ing or unlocking the bolts 14, 15 bymeans of Figure 2 is a side elevation of the automoa switch 31 mountedupon the dash board. bile chassis illustrated in Figure 1, The switch 31is adapted to be pulled out to m Figure 3 is an inverted View of therear start the motor to lockthe wheels-orpushed 90 axle assemblyillustrating the mechanism forV into start the motor to unlock thewheels. locking thewheels. l s The switch 31 is normally at the 0E posi-Figure 4 is a side View ofthe right rear tion and is adapted to belooked by meansvof wheel looking in the direction of the arrows asuitable lock and key,-or, if desired, it ymay l H3 in Figure 3. beunder the control of the ignition switch 95 Figure 5 is a view insection illustrating a lock so that when the ignition switch'isunmodification of the construction illustrated in locked the switch31will also be unlocked. Figure 3 showing the mode of application to Theoperation of the various parts def vehicle with disc type wheels.scribed is as follows: Assume'that the bolts Figure 6 is a side view ofadisc wheel show- 14, 15 are in the position indicated in Fig- 100 ure 3,that is, in unlocked position. The rear wheels may be locked by firstunlocking the switch 31 and operating the switch knob 32 to start themotor 28 in the locking direction. The motor 23 will drive the sprocketwheel 27 in a direction which, by the turning et shafts 23, 25 and 22,and gear ninion 20, will cause the bolts 14, 15 to move into a positionbetween the spokes et the rear wheels, the switch being kept closed longenough to allow the bolts le, 15 to move fai-enough, so that their endsproject between the spokes o'i' the wheels. rihe operation oi the key tolock the switch 31 prevents current from being sent through the motor toremove the bolts 1,4, 15 from the .locking position. The unlockingoperation is effected by unlockingthe switch 31, manipulatingY theswitch 31to send current through the motor causing it to turn in adirection the reverse of its locking movement until the bolts 14, 15have been retracted.

Figures 5 and 6 illustratea modification for the purpose of adapting theabove construction to an automobile equipped with disc wheels. Each ofthe bolts lit, 15 is somewhat shorter and is providedwith an opening inwhich is slidably mounted a member which is composed of a shoulderedcylindrical piece of abrasive material such as silicon carbide. Aspring' 33 normally presses the member 32 outwardly, that is, to thellett as shown in Figure 5. A screw 34, the end of which projects intothe path of the shoulders on the member 32 permits a restricted movementof the member. lVhen the bolts 1/1 or 15 are moved toward the wheels theend ofthe member 32 will engage the web of the Whe-el and the spring 33will be compressed until the left shoulder of the member 33 strikes thescrew.' thus clamping the wheel firmly and preventing it from turning.

In order to render the ignition circuit of the vehicle ineffectiveduring the time when the locking mechanism is in locked position,`

there is provided a bar 35 which is mounted perpendicularly to thesprocket chain driving the locking mechanism. lli/*hen the lockingmechanism is in normal position the bar bridges contacts 36 mounted uponthe dashboard. The contacts are connected to the ignition circuit sothat when a sprocket chain is driven by the motor to lock the car thecross-bar will be removed from the contacts, thus open-circuiting theignition circuit and rendering it ineii'ective. This is illustrateddiagrainmatically inV Figure 8. lVhen the switch controlling the motoris operated to unlock the car the bar 35 will be moved backwardly untilit againr bridges the rcontacts 36 thus rendering the ignition circuiteliective.

If it should happen that the car is towed by thieves when the members 32are in engagement with thewheels owing to the operation ot the switch 31to lock the wheel negarse curely held against the wheel web by thespring 33 so that the web will be cut through after the car has beentowed but a short distance.

vThe hereinbeiore described construction admits of considerablemodification without departing from the invention; therefore, itis thewish not to be limited to the precise arrangements shown and described,which are as aforesaid, by way oiillustration merely. En other words thescope of protection contemplated is to be taken solely from the appendedclaims, interpreted as broadly as is consistent with the prior art.

`What is claimed as new, is:

1. In a device of the'character described, the combination vwith thedisk wheel of a vehicle, of alocl'ing bolt including an abrasive memberand means for moving said abrasive member to locking position to engagethe web portion of the wheel, whereby movement of the vehicle whilelocked causes said abrasive member to cut through said web.

2. In a device of the character described, the combination` with'diskwheels'of a vehicle, of a plurality or oppositely acting locking` bolts,each including at its outer end an abrasive member, means for movingsaid bolts to locking position with said abrasive members in engagementwith the web portions o opposite wheels, each of said members includingmeans to limitthe outward and'inward movement of said abrasive member,whereby movement of the vehicle while locked causes said abrasivemembers to cut throughsaid webs. l

In a device oi the character described, the combinationwith oppositedisk wheels of a vehicle, cach wheel having a hub and a rim, of aplurality of oppositely acting locking` bolts, each including` at itsouter end an abrasive member, means for moving said bolts to lockingposition with said abrasive members in engagement with the webportionsoit opposite wheels, a `coiled spring constantly urging saidabrasive member to its web-engaging position, each of said abrasivenembers.having` shoulders,` and stop means on said locking bolt toengage said shoulders and limit the outward and inward movement ot saidabrasive i'nember, whereby movement of the vehicle while locked causessaid abrasive members to cut through said webs, severing the wheel rimsfrom their hubs.

ln testimony whereof Ihereby aiiii; my signature.

ernrimii .mints CULLEN.

